package io;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyDemo {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("码元图.jpg");
        FileOutputStream fos = new FileOutputStream("码元图_cp.jpg");
        long start = System.currentTimeMillis();//自1970年1月1日0时到此时此刻的毫秒数
        int d;
        while ((d=fis.read())!=-1){
            fos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println("耗时:"+(end-start)+"毫秒");
        System.out.println("复制完毕!");
        fis.close();
        fos.close();
    }
}
